MOSQUITO SCREEN 1>120G/M2 18*16MESH 2>FACTORY MOSQUITO SCREENWindow Screen, insect screen or bug screen is made of metal wire, fiberglass, or vinyl mesh, Its primary purpose is to keep insects, leaves, debris, birds, and other animals from entering a building or a screened structure such as a porch, while permitting fresh air-flow.the window screens to deny mosquitos are called mosquito screens, ...